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Bellei, Cristian – Economics of Education Review, 2009
This study (an impact evaluation of the Chilean full school day program) uses difference-in-differences to estimate the effect of a large increase in instructional time on high school students' academic achievement. The main findings are (i) the program had a positive effect on students' achievement in both mathematics and language; (ii) the…
Descriptors: Control Groups, Mathematics Achievement, Academic Achievement, Foreign Countries